名词
中文翻译：复合体
同义词：
['complex', 'compound']
例句：
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1.The chemical composition of the substance is unknown.
这种物质的化学组成未知。
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2. The complex structure of the organism is essential for survival.
这种生物体的复杂结构对于生存至关重要。
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3. The study of the chemical composition of matter has led to significant advancements in technology.
对物质化学成分的研究已经导致了技术的重大进步。